CN102474387A - Method, apparatus and computer program product for broadcast channel decoding - Google Patents

Abstract

Techniques for reliable channel decoding in a wireless network are provided. In one aspect, a wireless device receives system information over a physical broadcast channel of a downlink transmission. The wireless device decodes the physical broadcast channel of a current radio frame using a plurality of hypotheses until the decoding passes a cyclic redundancy check. Thereafter, the wireless device compares system information from the current radio frame with information obtained from a previous radio frame. The information from the previous radio frame may include one or more network parameters which may be stored in a memory of the wireless device. In some aspects, the comparison may be performed over a plurality of radio frames. Based at least in part on a result of the comparing, the wireless device may selectively reject system information from one or more of the radio frames.

Description

Method, device and the computer program of broadcast channel decoding

The cross reference of related application

That the application requires to enjoy in is that on July 31st, 2009 submitted to, name is called the U.S. Provisional Patent Application sequence number No.61/230 of " False Alarm Protection for Physical Broadcast Channel Blind Decoding "; 668 priority, the full content of this application mode is by reference incorporated the application into.

Technical field

Following explanation generally relates to radio communication, more specifically, relates in wireless communication system transmission is decoded.

Background technology

For various communications are provided, widespread deployment wireless communication system.For example, can speech and/or data be provided through this type of wireless communication system.Typical wireless communication system or network can provide the visit to one or more shared resources (for example, bandwidth, transmitting power etc.) to a plurality of users.This for example, system can use multiple multiple access technology, for example frequency division multiplexing (FDM), Time Division Multiplexing, code division multiplexing (CDM), OFDM (OFDM) etc.

Usually, wireless multiple-access communication system can support a plurality of subscriber equipmenies (UE) to communicate simultaneously.Each UE can communicate through the transmission on forward link and the reverse link and one or more access point (AP) or base station (BS).Forward link (or down link (DL)) is meant the communication link from BS to UE, and reverse link (or up link (UL)) is meant the communication link from UE to BS.

Summary of the invention

Summarize one or more embodiment below simply, so that these embodiment are had a basic understanding.The summary of the invention part is not the general overview to all embodiment that can associate, neither will confirm key or the important component part of all embodiment, neither describe the scope of any one embodiment or all embodiment.Unique purpose is to describe some notions of one or more embodiment simply, with this preamble as the detailed description of back.

According to one or more embodiment and corresponding open, various aspects have been described to the decoding on the PBCH.

According on the one hand, a kind of method is provided.Said method can comprise: the broadcast channel to current wireless electricity frame is decoded to obtain and wireless network system associated information; The system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And the system information of optionally refusing said current wireless electricity frame at least in part based on said comparative result.

According on the other hand, a kind of computer program is provided, it comprises computer-readable medium.Said computer program can comprise: first group of code is used to make computer that the broadcast channel of current wireless electricity frame is decoded to obtain and wireless network system associated information; Second group of code is used to make said computer that the system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And the 3rd group of code, be used to make said computer optionally to refuse the system information of said current wireless electricity frame at least in part based on said comparative result.

According on the other hand, a kind of device is provided.Said device can comprise: be used for the broadcast channel of current wireless electricity frame is decoded to obtain the module with wireless network system associated information; Be used for module that the system information of said current wireless electricity frame and the system information of obtaining from previous radio frame are compared; And the module that is used for optionally refusing based on said comparative result at least in part the system information of said current wireless electricity frame.

According to another aspect, a kind of device is provided.Said device can comprise Physical Broadcast Channel (PBCH) decoder module, is used for: the broadcast channel to current wireless electricity frame is decoded to obtain and wireless network system associated information; The system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And the system information of optionally refusing said current wireless electricity frame at least in part based on said comparative result.

According to another aspect, a kind of method is provided.Said method can comprise: the receiving downlink signal, and it comprises Physical Broadcast Channel (PBCH); Said PBCH is decoded to obtain the PBCH payload of first decoding; The PBCH payload that is based on previously obtd second decoding of PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload of decoding with said first; And the PBCH payload of refusing said first decoding in response to detecting said error condition.

According on the one hand, a kind of computer program is provided, it comprises computer-readable medium.Said computer program can comprise: first group of code is used to make computer to receive the down link signal that comprises Physical Broadcast Channel (PBCH); Second group of code is used to make said computer that said PBCH is decoded to obtain the PBCH payload of first decoding; The 3rd group of code, the PBCH payload that is used to make said computer to be based on previously obtd second decoding of PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload with said first decoding; And the 4th group of code, be used to make said computer to refuse the PBCH payload of said first decoding in response to detecting said error condition.

According on the other hand, a kind of device is provided.Said device can comprise: be used for the module of receiving downlink signal, said down link signal comprises Physical Broadcast Channel (PBCH); Be used for said PBCH is decoded to obtain the module of PBCH payload of first decoding; The PBCH payload that is used for being based at least in part previously obtd second decoding of PBCH payload of said first decoding detects the module of the error condition relevant with the PBCH payload of said first decoding; And the module that is used for refusing the PBCH payload of said first decoding in response to detecting said error condition.

According to another aspect, a kind of device is provided.Said device can comprise transceiver, is used for receiving the down link signal that comprises Physical Broadcast Channel (PBCH); The PBCH decoder module is used for: said PBCH is decoded to obtain the PBCH payload of first decoding; The PBCH payload that is based on previously obtd second decoding of PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload of decoding with said first; And the PBCH payload of refusing said first decoding in response to detecting said error condition.

Be to realize each characteristic that above-mentioned purpose and relevant purpose, one or more embodiment will fully be described below comprising and emphasis is listed in claim.Following description and accompanying drawing are with the each side of these one or more embodiment of way of example explanation.But a handful of method in the whole bag of tricks of the basic principle that can utilize each embodiment is only explained in these aspects, and described embodiment is intended to comprise all these aspects and equivalent thereof.

Description of drawings

Fig. 1 shows example wireless communications according to the various aspects that the application provides, and is used to carry out reliable channel-decoding.

Fig. 2 shows example wireless communications according to the various aspects that the application provides, and has wherein disposed one or more femto nodes.

Fig. 3 A, 3B, 3C, 3D, 3E, 3F and 3G are the block diagrams of describing the wireless communication system various aspects according to the various aspects that the application provides, are used to carry out reliable channel-decoding.

Fig. 4 A and 4B are the flow charts of the example process of the various aspects that provide according to the application, and it relates to and carries out reliable channel-decoding.

Fig. 5 is the flow chart of the another example process of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.

Fig. 6 is the flow chart of the another example process of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.

Fig. 7 and 8 is block diagrams of the example system of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.

Fig. 9 shows example wireless communications, the embodiment that wherein can utilize the application to describe.

Embodiment

A plurality of embodiment are described with reference to the accompanying drawings, wherein with the similar elements among identical Reference numeral indication this paper.In the following description, for ease of explaining, a large amount of details have been provided, so that the complete understanding to one or more embodiment is provided.Yet, clearly, also can realize said embodiment without these details.In other example, with the block diagram form known configurations and equipment are shown, so that describe one or more embodiment.

Used in this application " parts ", " module ", " system " etc. mean the entity relevant with computer, and it can be combination, software or the executory software of hardware, firmware, hardware and software.For example, parts can be but be not limited in: the thread of the process of moving on the processor, processor, object, executable program, execution, program and/or computer.For instance, the application program of on computing equipment, moving can be parts with this computing equipment.One or more parts can be positioned at an executory process and/or thread, and parts can be on the computer and/or be distributed between two or more the computers.In addition, can carry out these parts through the multiple computer-readable medium of having stored plurality of data structures.These parts can be through this locality and/or remote process (for example; According to signal with one or more packets) communicate (as, from carrying out alternately through signal in the data of parts and local system, the distributed system and/or through the miscellaneous part in the network that has other system such as the Internet etc.).

The technology that the application describes can be used for various wireless communication systems, for example code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), OFDM (OFDMA), single carrier-frequency division multiple access (SC-FDMA) and/or other system.Term " system " and " network " can be replaced use usually.Cdma system can be realized radiotechnics, for example general land wireless access (UTRA), CDMA8020 or the like.UTRA comprises other modification of wideband CDMA (W-CDMA) and CDMA.CDMA8020 is contained IS-8020, IS-95 and IS-856 standard.The OFDMA system can realize radiotechnics, for example evolution UTRA (E-UTRA), Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM or the like.UTRA and E-UTRA are the parts of UMTS (UMTS).3GPP Long Term Evolution (LTE) is the UMTS that will issue, and it has utilized E-UTRA, and wherein E-UTRA uses OFDMA on down link, on up link, uses SC-FDMA.UTRA, E-UTRA, UMTS, LTE and GSM describe in the document of " third generation partnership projects " tissue (3GPP) by name.In addition, CDMA8020 and UMB describe in the document of " third generation partnership projects 2 " tissue (3GPP2) by name.Further; This wireless communication system (for example can also comprise equity; Mobile device is to mobile device) ad hoc network system, it uses non-paired undelegated frequency spectrum, 802.xx WLAN, bluetooth and any other short distance or long-range wireless communication technology usually.

Single-carrier frequency division multiple access (SC-FDMA) utilizes single-carrier modulated and frequency domain equalization.The SC-FDMA system compares with the OFDMA system can have similar performance and substantially the same overall complexity.The SC-FDMA signal can have lower peak-to-average power ratio (PAPR) owing to its inherent single carrier structure.SC-FDMA can use in uplink communication, and lower therein PAPR is particularly useful for UE aspect transmit power efficiency.Correspondingly, the up link multiple access scheme that can be used as among 3GPP Long Term Evolution (LTE) and the evolution UTRA of SC-FDMA realizes.

In conjunction with the various aspects of UE a plurality of embodiment have been described.UE can also be called system, subscriber unit, subscriber station, mobile radio station, travelling carriage, station, a distant place, remote terminal, mobile device, accesses terminal, Wireless Telecom Equipment, user agent or user's set.UE can be that cell phone, cordless telephone, Session Initiation Protocol phone, WLL (WLL) are stood, personal digital assistant (PDA), the handheld device with wireless connections ability, computing equipment or other are connected to the treatment facility of radio modem.In addition, each embodiment combines access point (AP) to be described.AP can be used to communicate with UE, can also be called base station, femto node, slightly node, Node B, enode b (eNodeB, eNB) or other terms.

In addition, " perhaps " speech is to represent " perhaps " of comprising property rather than " perhaps " of exclusiveness.That is to say, unless otherwise indicated, perhaps can know and learn, otherwise the meaning of " X uses A or B " is any natural comprising property arrangement from context.That is to say that if X uses A, X uses B, perhaps X use A and B the two, then all satisfied under above-mentioned any one example " X use A or B ".In addition, can know that learning is the expression singulative unless otherwise indicated or from context, otherwise " one " and " one " that uses in the application and additional claims usually should be interpreted as expression " one or more ".

In addition, various aspects of the present invention can be embodied as the goods of method, device or use standard program and/or engineering.The term that uses among the application " goods " is contained can be from the computer program of any computer-readable device, carrier or medium access.For example, computer-readable medium can include, but are not limited to: nonvolatile property storage medium; For example magnetic memory device (for example; Hard disk, floppy disk, tape etc.), CD (for example, compact disk (CD), digital versatile disc (DVD)); Smart card and flush memory device (for example, card, rod, key actuated device).In addition, the various storage mediums of the application's description can represent to be used for the one or more equipment and/or the other machines readable medium of stored information.Term " machine readable media " can comprise storage medium and/or the various media that can store, protect and/and carry code and/or instruction and/or data.

According to some aspects; The application's instruction can comprise that grand scale (for example covers; Big regional cellular network such as the third generation (3G) network is commonly referred to the macrocell network) and cover on a small scale in the network of the network environment of dwelling house or building (for example, based on) and use.UE moves in this network.UE can be served by the AP that grand covering is provided in some position, in other position, is served by the AP that covering on a small scale is provided.According to some aspects, less overlay node can be used for providing interior the covering and different services (for example, to more sane user experience) of capacity increase, building of increment type.In the application's description, provide the node of covering to can be described as grand node in relatively large zone.Providing the node of covering to can be described as the femto node than zonule (for example, dwelling house) relatively.Littler than grand zone but provide the node of covering to can be described as slight node (for example, in commercial establishment, provide covering) in the big zone than femto zone.

The sub-district that is associated with grand node, femto node or slight node can be called macrocell, Femto cell or picocell respectively.In some are realized, each sub-district can further be associated (for example, being divided into one or more sectors) with one or more sectors.

In a plurality of application, other term can be used for representing grand node, femto node or slight node.For example, grand node can be used as or be called BS, access point, eNodeB, macrocell or the like.In addition, the femto node can be used as or be called family expenses Node B, family expenses eNodeB, access point, access node, BS, Femto cell or the like.

With reference to Fig. 1, each embodiment that provides according to the application shows wireless communication system 100 below.System 100 comprises BS 102, and it can comprise a plurality of antenna sets.For example, an antenna sets can comprise antenna 104,106, and another group can comprise antenna 108,110, and another group can comprise antenna 112,114.Show two antennas to each antenna sets; Yet, can use antenna more or still less to each group.What those skilled in the art should understand that is; BS 102 can also comprise transmitting node chain and receiving node chain, and wherein each then can comprise with the signal transmission and receive a plurality of parts (for example processor, modulator, multiplexer, demodulator, demultiplexer, antenna) that are associated.

BS 102 can communicate with one or more UE, and for example UE 116,122.Yet, should be understood that, BS 102 basically can with communicate with UE 116,122 similar any amount of UE.UE 116,122 can be that for example cell phone, smart phone, notebook, handheld communication devices, handheld computing device, satelline radio, global positioning system, PDA and/or any other are used for the suitable equipment that communicates through wireless communication system 100.As shown, UE 116 communicates with antenna 112,114, wherein antenna 112,114 through DL 118 to UE 116 transmission information, through UL 120 from UE 116 reception information.Further, UE 122 communicates with antenna 104,106, wherein antenna 104,106 through DL 124 to UE 122 transmission information, through UL 126 from UE 122 reception information.For instance, in FDD (FDD) system, DL 118 can utilize the different frequency band that is utilized with UL 120, and DL 124 can utilize the different frequency band that is utilized with UL 126.Further, in time division duplex (TDD) system, DL 118 and UL 120 can utilize common frequency band, and DL 124 and UL 126 can utilize common frequency band.

Base station 102 can send to UE 116,122 with system information on DL 124.Can to control with data channel decode in the utilization system information be vulnerable to interference from other sub-district.System 100 has increased the reliability of channel-decoding.In one embodiment, UE 116,122 can be used to detect and control channel information carried out the relevant false-alarm of blind decoding.Such as among the application use, " false-alarm " can represent that UE 116,122 carries out blind decoding based on incorrect hypothesis to control channel and the error checking and correction indicating correct and the situation of decoding accurately.When for example, UE 116,122 is can be on the border of the radio frame of 10ms only known Physical Broadcast Channel (PBCH) with 40ms Transmission Time Interval (TTI) is carried out blind decoding.For PBCH is decoded, UE 116,122 can adopt a plurality of TTI border (for example, 4) or carry out a plurality of channel-decoding hypothesis.Under some situations, although error checking and correction is arranged, control information also can be damaged thereby produce false-alarm.The method that the application describes can be refused this false-alarm to increase the reliability of decoding.

Fig. 2 is the explanation to example wireless communications, and the various aspects that wherein provide according to the application have been disposed one or more femto nodes.System 200 is heterogeneous networks, comprises wide area network 240, Femto cell 230, macrocell access node 260 and mobile operator core network 250.Particularly, system 200 comprises a plurality of femto nodes 210 (for example, femto node 210A and 210B), and it is installed in (for example, in one or more users residence 230) in the small-scale relatively network environment.Each femto node 210 can be coupled to wide area network 240 (for example, the Internet) and mobile operator core network 250 through DSL router, cable modem, Radio Link or other connection means (not shown).Like what below will discuss, each femto node 210 can be used to serve relevant UE (for example, relevant UE 220A), and randomly, serves external UE (for example, external UE 220B).In other words; Access to femto node 210 can limit, thereby given UE 220 can be served by (for example, family) one group of femto node 210 of appointment; And cannot serve by the femto node 210 (for example, neighbours' femto node 210) of any non-appointment.

In each embodiment, relevant UE 220A can stand the interference from the femto node 210 of serving external UE220B on DL.Similarly, can on UL, stand interference with the femto node 210 that relevant UE 220A is associated from external UE 220B.For heterogeneous network, also might disturb from contiguous sub-district (for example, Femto cell or picocell).Likewise, to decode possibly be difficult to control and data channel.Though the explanation of front is described with reference to the femto node, should be understood that it also is applicable to slight node and bigger overlay area.

Physical Broadcast Channel (PBCH) can the delivery time responsive information, it also can receive interference effect, and can influence decoding.For example, UE 220A, 220B can attempt to receive PBCH from BS 102.The appearance of PBCH false-alarm can reduce the possibility that the control of time-sensitive and data channel are correctly decoded.As an example, use the Cyclic Redundancy Check of 16 bits and suppose each radio frame 12 blind decodings operation of execution (corresponding to 4 redundancy value (RV) index and 3 emissions (TX) antenna), can expect per 2 ¹⁶False-alarm appears one time in/12=5461 radio frame at least, and it is approximately per 55 seconds once.

In order to improve decoding reliability, particularly when blind decoding was carried out in PBCH transmission, the embodiment that the application describes can provide PBCH decoder module 320,330, for example below with reference to figure 3A description.It is sane that PBCH decoder module 320,330 can be configured to strong interference environment.Fig. 3 A is the explanations to the block diagram of wireless communication system of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.BS 302,322 can comprise transceiver 306,326 respectively, processor 308,328 and memory 310,330, and being respectively applied for transmission and receiving, handle and store data and/or control information like the application's description.In certain embodiments, BS 302,322 can encode to data and/or control information, can be decoded by UE 304,324 thereafter (comprising the blind decoding technology that adopts).

BS 302,322 can also comprise BS Physical Broadcast Channel module 312,332.BS Physical Broadcast Channel module 312,332 can be used to prepare data and/or control information, and it is essential for UE 304,324 carries out blind decoding institute.For example, BS Physical Broadcast Channel module 312,332 can be prepared payload, comprises bandwidth field, reserved field, System Frame Number (SFN) or the like.In some configurations, redundancy versions (RV) information can be carried in coded-bit, and wherein, the different section of sequences of code bits is sent in different radio frames.In addition, can additional cycles redundancy check information to support completeness check.

As another example, BS Physical Broadcast Channel module 312,332 can comprise Master Information Block (MIB) information, and its use is in or near the Resource Block of channel center.Information can transmit the dissimilar control information of any amount, includes but not limited to system bandwidth and antenna configurations or the like.

In certain embodiments, the preparation that can carry out as follows on the PBCH is handled.PBCH can comprise the payload of 40 bits, and comprising the CRC of 16 bits, it can send through 72 center subcarriers, promptly adopts the frequency span of the 1.08MHz of band center place.For example, PBCH can carry following physical layer parameter: DL system bandwidth (3 bit); The automatic repeat requests indicator channel of physical mixed (PHICH) duration (1 bit), the quantity (2 bit) and the System Frame Number (SFN) (8 bit) of PHICH group.Remaining 10 bits can keep to using in the future in the payload.Be set to 0 for normal PHICH duration (1 OFDM symbol) PHICH duration field, it is set to 1 for the PHICH duration of expanding (3 OFDM symbols).The SFN field comprises 8 highest orders (MSB) of the System Frame Number of 10 bits.2 lowest orders of other of the SFN of 10 bits (LSB) can be decoded through the PBCH that adopts the 40ms frame length and known.

Can carry PBCH information having on each lead code of 40ms TTI.In lead code, preceding 4 the OFDM symbols in second time slot can be exclusively used in PBCH.In the PBCH transmission, can keep all RS tones (tone), and no matter the quantity of transmitting antenna.Therefore, the quantity of each lead code PBCH tone is 72 * 4-(24 * 2)=240, and its situation for 1 transmitting antenna, 2 transmitting antennas and 4 transmitting antennas is identical.

Before transmitting from BS 302,322, can the CRC of 16 bits be appended to the PBCH information of 24 bits, can encode to generate the code word of 120 bits to 40 bits of combination based on tail-biting convolutional code (TBCC) then.In the interlace operation of 32 row, carry out rate-matched to realize repeated encoding through using cyclic buffer, carry out binary system scrambling and QPSK (QPSK) modulation then.Adopt 2 or 4 transmitting antennas, additional respectively space-time/frequency block code (SFBC) or SFBC-frequency are switched transmission diversity (FSTD) coding, and symbol sebolic addressing finally is mapped to corresponding tone in the lead code, and through the OFDM modulator.

In each embodiment, BS Physical Broadcast Channel module 312,332 can be used to carry out the method for the application's general description and/or one or more aspects of embodiment.In certain embodiments, BS Physical Broadcast Channel module 312,332 can comprise one or more systems or its electronic unit.

UE 303,323 can comprise transceiver 314,334 respectively, and processor 316,336, and memory 318,338 are respectively applied for and send and receive, handle and store data and/or the control information that the application describes.UE 303,323 can also comprise PBCH decoder module 320,330.

PBCH decoder module 320,330 can be used to carry out the method 400,450,500,600 of the application's general description and/or one or more steps of embodiment.In certain embodiments, PBCH decoder module 320,330 can comprise one or more systems 800 or 820 or its electronic unit.

In certain embodiments, described like the application, PBCH decoder module 320,330 can be used to carry out blind decoding and/or hypothesis testing.In order to improve reliability and to reduce false-alarm, the embodiment that the application describes can provide PBCH decoder module 320,330, and is for example following described with reference to figure 3A.It is sane that PBCH decoder module 320,330 can be configured to strong interference environment.

In one embodiment, PBCH decoder module 320,330 can be used to carry out channel-decoding.According to some aspects, can carry out blind decoding and detect frame boundaries, with initial acquisition PBCH.For example, when catching PBCH for the first time, possibly not know the quantity of transmitting antenna, thereby can carry out blind decoding.Under some situations, can be to the blind decoding of PBCH to a plurality of hypothesis test (for example, 4 hypothesis of frame boundaries ( RV 0,1,2 or 3) 3 hypothesis multiply by number of transmission antennas (1,2 or 4) obtain 12 decoding hypothesis altogether).

Fig. 3 B shows the exemplary operation of PBCH decoder module 320,330, and wherein, the initial acquisition of front-end sampling comes from searcher sampling server, and carries out the blind decoding of 12 hypothesis.After the initial acquisition of accomplishing PBCH, can get into activity pattern.When having collected front-end sampling carrying out after PBCH handles, can extract the PBCH data tones and with its feed-in MMSE/MRC piece.Use channel and the estimation of disturbing covariance, if a plurality of transmitting antennas are arranged, the MMSE/MRC piece can carry out separating with SFBC or SFBC-FSTD the MRC of code combination.At the log-likelihood ratio (LLR) that calculates each bit afterwards, can carry out the LLR descrambling, and can through-rate separate matching process the LLR of same code word bit is combined.Can be with the code word feed-in Viterbi decoder (Viterbi decoder) of deinterleaving, original information bit is in CRC check and remove the back recovery.

About the spatial manipulation in the MMSE/MRC operation, the quantity of transmitting antenna have 3 kinds possibly in blind detection process through the check of hypothesis is discerned: 1,2 and 4.Each hypothesis can relate to different MMSE/MRC operations.For for simplicity, supposed UE with 2 reception antennas.

A transmitting antenna: for having only a transmitting antenna, after noise whitening, receiver can carry out simple MRC combination to the signal that receives from each reception antenna.At first, the signal vector r [k] that receives on the tone k can be expressed as

$r\left[k\right]=\left[\begin{array}{c}{r}_1\left[k\right]\\ r_2\left[k\right]\end{array}\right]=\left[\begin{array}{c}{h}_1\left[k\right]\\ h_2\left[k\right]\end{array}\right]S+\left[\begin{array}{c}{n}_1\left[k\right]\\ n_2\left[k\right]\end{array}\right]$ Formula 1

Interference covariance matrix is designated as R _Nn, it is provided by the interference estimator piece.Multiply by noise whitening matrix

afterwards; The signal vector that receives becomes

is designated as

then with antenna l and the gain of tone k estimated channel, and the efficient channel vector of estimating behind the noise whitening

becomes

$\tilde{h}\left[k\right]=\left[\begin{array}{c}{\tilde{h}}_1\left[k\right]\\ {\tilde{h}}_{2}k]\end{array}\right]=R_{\mathrm{Nn}}^{-1/2}\left[\begin{array}{c}{\hat{h}}_1\left[k\right]\\ {\hat{h}}_2\left[k\right]\end{array}\right]$ Formula 2

At last, carry out the MRC combination to draw following signal.

$z\left[k\right]=\tilde{h}{\left[k\right]}^H\tilde{r}\left[k\right]$ Formula 3

SNR after the MRC combination has illustrated the block diagram of the MMSE/MRC operation with a transmitting antenna in Fig. 3 C for .

Summed up MRC process below with a transmitting antenna.For tone k,

multiply by the signal vector r [k] that receives with the noise whitening matrix

The noise whitening matrix

multiplied by the estimated channel vector

Calculate the effective channel vector estimate and the received signal vector albino

inner product

Two transmitting antennas: 2 * 2 SFBC:, transmit to PBCH and to utilize SFBC to divide collection to obtain open-loop transmission for two transmitting antennas.Be described below, the SFBC coding based on 2 * 2 uses two continuous periodicity pitches to send the symbol of two codings through two transmitting antennas.

Vectorial R [k] on tone k and k+1 below the signal that receives makes up.

$R\left[k\right]=\left[\begin{array}{c}r\left[k\right]\\ r[k+1]\end{array}\right]=\left[\begin{array}{c}{r}_1\left[k\right]\\ r_2\left[k\right]\\ {{\mathrm{<figure-callout\; id="1"\; label="r"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">r</figure-callout>}}_1}^{*}[k+1]\\ {{\mathrm{<figure-callout\; id="2"\; label="r"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">r</figure-callout>}}_2}^{*}[k+1]\end{array}\right]=\left[\begin{array}{cc}{H}_{11}\left[k\right]& H_{12}\left[k\right]\\ H_{21}\left[k\right]& H_{22}\left[k\right]\\ {H_{12}}^{*}[k+1]& -{H_{11}}^{*}[k+1]\\ {H_{22}}^{*}[k+1]& -{H_{21}}^{*}[k+1]\end{array}\right]\left[\begin{array}{c}{S}_1\\ -{\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">S</figure-callout>}}_2^{*}\end{array}\right]$ Formula 4

Through supposing that two continuous tones have identical frequency response,

H _Mn[k+1]=H _Mn[k] wherein, m, n=1 and 2 formulas 5

Vector R [k] becomes

$R\left[k\right]=\left[\begin{array}{c}{r}_1\left[k\right]\\ r_2\left[k\right]\\ {{\mathrm{<figure-callout\; id="1"\; label="r"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">r</figure-callout>}}_1}^{*}[k+1]\\ {{\mathrm{<figure-callout\; id="2"\; label="r"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">r</figure-callout>}}_2}^{*}[k+1]\end{array}\right]=\left[\begin{array}{cc}{H}_{11}\left[k\right]& H_{12}\left[k\right]\\ H_{21}\left[k\right]& H_{22}\left[k\right]\\ {H_{12}}^{*}\left[k\right]& -{H_{11}}^{*}\left[k\right]\\ {H_{22}}^{*}\left[k\right]& -{H_{21}}^{*}\left[k\right]\end{array}\right]\left[\begin{array}{c}{S}_1\\ -{\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">S</figure-callout>}}_2^{*}\end{array}\right]+\left[\begin{array}{c}{n}_1\left[k\right]\\ n_2\left[k\right]\\ {{\mathrm{<figure-callout\; id="1"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">n</figure-callout>}}_1}^{*}[k+1]\\ {{\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">n</figure-callout>}}_2}^{*}[k+1]\end{array}\right]$ Formula 6

Noise covariance matrix does

$E\{\left[\begin{array}{c}{n}_1\left[k\right]\\ n_2\left[k\right]\\ {{\mathrm{<figure-callout\; id="1"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">n</figure-callout>}}_1}^{*}[k+1]\\ {{\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">n</figure-callout>}}_2}^{*}[k+1]\end{array}\right]\&CenterDot;{\left[\begin{array}{c}{n}_1\left[k\right]\\ n_2\left[k\right]\\ {{\mathrm{<figure-callout\; id="1"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">n</figure-callout>}}_1}^{*}[k+1]\\ {{\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">n</figure-callout>}}_2}^{*}[k+1]\end{array}\right]}^H\}=\left[\begin{array}{cc}{R}_{\mathrm{Nn}}^{\left(2x2\right)}& 0^{\left(2x2\right)}\\ 0^{\left(2x2\right)}& R_{\mathrm{Nn}}^{\left(2x2\right)}\end{array}\right]$ Formula 7

After multiply by noise whitening filter

, the result does

$\tilde{r}\left[k\right]=\left[\begin{array}{c}{\tilde{r}}_1\left[k\right]\\ {\tilde{r}}_2\left[k\right]\end{array}\right]=R_{\mathrm{Nn}}^{-1/2}\left[\begin{array}{c}{r}_1\left[k\right]\\ r_2\left[k\right]\end{array}\right],$ $\tilde{r}[k+1]=\left[\begin{array}{c}{\tilde{r}}_1[k+1]\\ {\tilde{r}}_2[k+1]\end{array}\right]=R_{\mathrm{Nn}}^{-1/2}\left[\begin{array}{c}{r}_1[k+1]\\ r_2[k+1]\end{array}\right]$ Formula 8

The efficient channel matrix of after albefaction, estimating becomes

${\tilde{h}}_1\left[k\right]=\left[\begin{array}{c}{\tilde{h}}_{11}\left[k\right]\\ {\tilde{h}}_{21}\left[k\right]\end{array}\right]=R_{\mathrm{Nn}}^{-1/2}\left[\begin{array}{c}{\tilde{H}}_{11}\left[k\right]\\ {\tilde{H}}_{21}\left[k\right]\end{array}\right]$ ${\tilde{h}}_2\left[k\right]=\left[\begin{array}{c}{\tilde{h}}_{12}\left[k\right]\\ {\tilde{h}}_{22}\left[k\right]\end{array}\right]=R_{\mathrm{Nn}}^{-1/2}\left[\begin{array}{c}{\hat{H}}_{12}\left[k\right]\\ {\hat{H}}_{22}\left[k\right]\end{array}\right]$ Formula 9

Definition $H_{\mathrm{SFBC}}\left[k\right]=\left[\begin{array}{cc}{H}_{11}\left[k\right]& H_{12}\left[k\right]\\ H_{21}\left[k\right]& H_{22}\left[k\right]\\ H_{12}^{*}\left[k\right]& -H_{11}^{*}\left[k\right]\\ H_{22}^{*}\left[k\right]& -H_{21}^{*}\left[k\right]\end{array}\right],$ ${\tilde{H}}_{\mathrm{SFBC}}\left[k\right]=\left[\begin{array}{cc}{\tilde{h}}_{11}\left[k\right]& {\tilde{h}}_{12}\left[k\right]\\ {\tilde{h}}_{21}\left[k\right]& {\tilde{h}}_{22}\left[k\right]\\ {\tilde{h}}_{12}^{*}\left[k\right]& -{\tilde{h}}_{11}^{*}\left[k\right]\\ {\tilde{h}}_{22}^{*}\left[k\right]& -{\tilde{h}}_{21}^{*}\left[k\right]\end{array}\right],$ And $\tilde{R}\left[k\right]=\left[\begin{array}{c}\tilde{r}\left[k\right]\\ {\tilde{r}}^{*}[k+1]\end{array}\right].$

Then; Through after

multiply by

carrying out MRC, obtain following formula.

The balanced symbol of S1 ${\tilde{h}}_1^H\left[k\right]\&CenterDot;\tilde{r}\left[k\right]+{\left({\tilde{h}}_2^H\right[k\left]\right)}^{*}\&CenterDot;{\tilde{r}}^{*}[k+1]$ Formula 10

SNR after the equilibrium of S1: ${\left|{\tilde{h}}_1\right[k\left]\right|}^2+{\left|{\tilde{h}}_2\right[k\left]\right|}^2$ Formula 11

The balanced symbol of S2 ${\tilde{h}}_1^H\left[k\right]\&CenterDot;\tilde{r}[k+1]-{\left({\tilde{h}}_2^H\right[k\left]\right)}^{*}\&CenterDot;{\tilde{r}}^{*}\left[k\right]$ Formula 12

The balanced back SNR of S2: ${\left|{\tilde{h}}_1\right[k\left]\right|}^2+{\left|{\tilde{h}}_2\right[k\left]\right|}^2$ Formula 13

Fig. 3 D shows the block diagram of the MMSE/MRC with 2 transmitting antennas.

Second component that should be noted that z [k] is

Multiply by a positive number, rather than the S of scalable version ₂Therefore, z [k] being delivered to before next receiver block, for z ₂[k] need bear conjugate operation.Summed up MMSE/MRC process below with two transmitting antennas: for tone k and k+1,

Make up the vectorial R [k] that receives from two continuous tones

multiply by the signal vector R [k] that receives with the noise whitening matrix

The noise whitening matrix multiplied by the estimated channel vector

From the estimated channel vector albino

Build

Will

multiplying the received signal vector albino

To z ₂[k] gets complex conjugate

Four transmitting antennas: 4 * 2 SFBC-FSTD: for four transmitting antennas, send PBCH, divide collection to obtain open-loop transmission based on SFBC-FSTD.For the SFBC-FSTD transmission, four continuous tones are divided into one group.Tone for having index 4k and 4k+1 is right, only activates transmitting antenna 0 and 2, and uses SFBC to send signal through 2 * 2 the mimo channel that these two transmitting antennas constitute.On the other hand, right for tone with index 4k+2 and 4k+3, transmitting antenna 1 and 3 is launched, and adopted SFBC to send data through 2 * 2 mimo channel.Since on each transmitting antenna only the tone of half transmit data, can make the euphonic transmitting power multiplication of launching under the power constraint of each antenna satisfying.

→ tone index

$\begin{array}{c}\mathrm{<figure-callout\; id="0"\; label="Ant"\; filenames="HDA0000133291540000071.png,HDA0000133291540000072.png"\; state="\{\{state\}\}">Ant</figure-callout>}0\\ \mathrm{<figure-callout\; id="1"\; label="Ant"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">Ant</figure-callout>}1\\ \mathrm{<figure-callout\; id="2"\; label="Ant"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">Ant</figure-callout>}2\\ \mathrm{Ant}3\end{array}\left[\begin{array}{cccc}{S}_1& {\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">S</figure-callout>}}_2& 0& 0\\ 0& 0& S_3& S_4\\ -{\mathrm{<figure-callout\; id="2"\; label="S"\; filenames="HDA0000133291540000061.png,HDA0000133291540000071.png"\; state="\{\{state\}\}">S</figure-callout>}}_2^{*}& {\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="HDA0000133291540000061.png,HDA0000133291540000062.png"\; state="\{\{state\}\}">S</figure-callout>}}_1^{*}& 0& 0\\ 0& 0& -S_4^{*}& S_3^{*}\end{array}\right]$

Top matrix shows the operation of SFBC-FSTD.Every line display transmitting antenna is mapped to tone with row.The pattern of front is carried out repetition to all tones.

Fig. 3 E shows the block diagram of the MMSE/MRC with four transmitting antennas.

In the figure, if k=4n, then ${\tilde{H}}_{\mathrm{SFBC}}\left[k\right]=\left[\begin{array}{cc}{\tilde{h}}_{11}\left[k\right]& {\tilde{h}}_{13}\left[k\right]\\ {\tilde{h}}_{31}\left[k\right]& {\tilde{h}}_{33}\left[k\right]\\ {\tilde{h}}_{13}^{*}\left[k\right]& -{\tilde{h}}_{11}^{*}\left[k\right]\\ {\tilde{h}}_{33}^{*}\left[k\right]& -{\tilde{h}}_{31}^{*}\left[k\right]\end{array}\right];$ Otherwise, if k=4n+2, then ${\tilde{H}}_{\mathrm{SFBC}}\left[k\right]=\left[\begin{array}{cc}{\tilde{h}}_{22}\left[k\right]& {\tilde{h}}_{24}\left[k\right]\\ {\tilde{h}}_{42}\left[k\right]& {\tilde{h}}_{44}\left[k\right]\\ {\tilde{h}}_{24}^{*}\left[k\right]& -{\tilde{h}}_{22}^{*}\left[k\right]\\ {\tilde{h}}_{44}^{*}\left[k\right]& -{\tilde{h}}_{42}^{*}\left[k\right]\end{array}\right].$

Summed up below have four transmitting antennas the MMSE/MRC process.

Tone for having index 4k and 4k+1 is right: use TX antenna 0 to carry out the process identical with SFBC with 2;

Tone for having index 4k+2 and 4k+3 is right: use TX antenna 1 to carry out the process identical with SFBC with 3.

The channel descrambling: carry out speed separate the coupling and deinterleaving before through predetermined random sequence LLR is carried out descrambling.The pseudo random sequence that is used for PBCH scrambling/descrambling is that 31 Gold sequence defines by length.Length is M _PNOutput sequence c (n), n=0 wherein, 1 ..., M _PN-1, be defined as

c(n)＝(x ₁(n+N _C)+x ₂(n+N _C))mod2

x ₁(n+31)＝(x ₁(n+3)+x ₁(n))mod2

x ₂(n+31)＝(x ₂(n+3)+x ₂(n+2)+x ₂(n+1)+x ₂(n))mod2

N wherein _C=1600, first m-sequence adopts x ₁(0)=1, x ₁(n)=0, n=1,2 ..., 30 come initialization.

The initialization of second m-sequence of PBCH scrambling is designated as

if output equals ' 1 ' from the correspondence of sequence generator, and descrambling operation is to multiply by each LLR with ' 1 '.The channel speed of explanation PBCH matees and interlace operation below.According on the other hand, describe the speed of PBCH in detail and separate coupling reconciliation interlace operation.

Separate coupling about speed, length is that the LLR sequence of the descrambling of E can be separated match block by ingress rate.The value of E can be relevant with the hypothesis of testing to blind decoding.Each LLR of this list entries is designated as e _k, k=0,1 ..., E-1.Because e _kComprise that length is K _wInterweave the back code word repeated version, first operation that speed is separated coupling is that a plurality of LLR from identical code word bits are made up.If the LLR sequence of combination is designated as w _k, k=0,1 ..., K _w-1, anabolic process can be described as follows.

Set?k＝0

while{k＜E}

$w_{{k\mathrm{mod}K}_w}=w_{{k\mathrm{mod}K}_w}+e_k$

k＝k+1

end?while

On cyclic buffer, and demultiplexing is that length is K to the LLR sequence of combination with identical length write _П=1/3K _wThree different bit sequences, it is designated as

L=0,1,2.These sequences satisfy following relationship.

$v_k^{\left(0\right)}=w_k$ k＝0，...，K _П-1

$v_k^{\left(1\right)}=w_{K_{\mathrm{\&Pi;}}+k}$ k＝0，...，K _П-1

$v_k^{\left(2\right)}=w_{2K_{\mathrm{\&Pi;}}+k}$ k＝0，...，K _П-1

At last, each LLR flows the sub-piece deinterleaver of can feeding.Speed is separated the integrated operation of match block shown in Fig. 3 F.

About sub-piece deinterleaver; Sub-block interleaver among Fig. 3 F has the list entries of combination LLR; It is defined as and output stream

l=0 wherein; 1,2.Then, carry out the inverse operation of sub-block interleaving as follows:

(a) make up the matrix of R * C as follows, make R * C＞K _ПIt is 32 that this matrix column is counted C, defines in the permutation function P part in front.Then, insert N at first row _D=(R * C-K _П) individual dummy bits (dummy bit), make y _k=<nULL>, k=0,1 ..., N _D-1.

(b) with the input bit sequence

Be written as the matrix of R * C by row, its bit y from the 0th row of the 0th row _{P (0)}Beginning.If dummy bits is arranged, then input bit is write the 2nd row, rather than the replacement dummy bits.

(c) then, based on the pattern shown in the table 1<p ^-1() > j; _{J ∈ 0,1 ..., C-1}}Displacement, wherein P between matrix is listed as ^-1(j) be the initial column position of j the row after the displacement.After row were replaced, the matrix of the R * C between row after the displacement equaled

(d) note N _D=(R * C-K ₁₁), and from above-mentioned matrix, read output stream, make

K=0,1 ..., K ₁₁-1.

Table 1 has been described displacement patterns between the row of sub-piece deinterleaver:

Table 1

To export LLR stream

Tailbiting decoder of feeding (tail-biting decoder); L=0 wherein; 1,2.

Particularly, for blind decoding, PBCH can have the Transmission Time Interval (TTI) of 40ms, but only the radio frame boundary of 10ms is known carrying out before the PBCH decoding.Therefore, for first PBCH frame is decoded, PBCH decoder module 320,330 can suppose that four different TTI borders carry out blind decoding to PBCH:

(a) suppose current radio frame corresponding to RV0, first radio frame of its expression 40ms TTI: (LLR) makes up to the log-likelihood ratio among the RV0;

(b) suppose current radio frame corresponding to RV1, second radio frame of its expression 40ms TTI: the LLR among RV0 and the RV1 makes up;

(c) suppose current radio frame corresponding to RV2, the 3rd radio frame of its expression 40ms TTI: the LLR among RV0, RV1 and the RV2 makes up; And

(d) suppose current radio frame corresponding to RV3, the last radio frame of its expression 40ms TTI: to making up among RV0, RV1, RV2 and the RV3LLR.

In addition, the quantity of transmitting antenna is carried on PBCH; Therefore, when a PBCH frame was decoded, this information was unknown, and it requires blind decoding on number of transmission antennas, to suppose three different hypothesis: 1,2 or 4.

Therefore, for first PBCH is divided into groups to decode, need have the blind decoding of 12 hypothesis altogether at the radio frame of each 10ms.Sequentially each hypothesis is tested, till passing through CRC.If CRC failure after per 12 hypothesis are tested, then test is once more from first hypothesis beginning.

Notice that each frame boundaries hypothesis generates the LLR of varying number, and is as shown in table 2.LLR sequentially is stored in size in the cyclic buffer of 480*4=1920 bit.If CRC failure after all 12 hypothesis of check, the LLR of the radio frame of then making a fresh start overrides 480 the oldest in cyclic buffer LLR.

Table 2 has been listed the hypothesis of PBCH blind decoding:

Suppose	The TTI border	Decoded RV	The quantity of LLR
				1	RV0	RV0	480
2	RV1	RV0+RV1	960
				3	RV2	RV0+RV1+RV2	1440
4	RV3	RV0+RV1+RV2+RV3	1920
				Amount to			4800

Table 2

The rate-matched of PBCH comprises three bit streams

and

is interweaved; Then collect bit and generate cyclic buffer, shown in Fig. 3 G.

Bit stream

l=0; 1; 2 interweave according to sub-block interleaver; Its output sequence is defined as sub-block interleaver and is included in the bit input of using the matrix of filling, replaces between matrix column and exports from the bit of matrix.The input of the bit of block interleaver be designated as

wherein D be amount of bits.Output bit sequence from block interleaver draws as follows:

(a) make C=32 equal the matrix column number.Matrix column from left to right is numbered 0,1,2 respectively ..., C-1.

(b) make K through finding out ₁₁≤(R * smallest positive integral R C) confirms the line number R of matrix.The row of rectangular matrix is numbered 0,1,2 respectively from top to bottom ..., R-1.

(c) if R * C＞D then fills N _D=(the individual dummy bits of R * C-D) makes y _k=<nULL>, k=0,1 ..., N _D-1.Then, (promptly with the input bit sequence K=0,1 ..., D-1) write as R * C matrix by row, start from the bit y in the row 0 of row 0 ₀:

(d) based on the pattern shown in the table 3<p (j)> _{J ∈ 0,1 ..., C-1}}Displacement between matrix is listed as, wherein P (j) is the original column position of j the row after replacing.After row were replaced, the R * C matrix between row after the displacement equaled

(e) output of block interleaver be from row between the displacement after the bit sequence that R * the C matrix is read by row.Bit after the sub-block interleaving is designated as

Wherein

Corresponding to y _{P (0)},

Corresponding to y _{P (0)+C}, or the like.If the dummy bits that has, dummy bits and its of skipping first row are not included in the bit that interweaves.

Table 3 shows displacement patterns between the row of sub-block interleaver:

Table 3

Behind interlace operation, generating length as follows is K _w=3K _ПCyclic buffer:

$w_k=v_k^{\left(0\right)}$ k＝0，...，K _П-1

$w_{K_{\mathrm{\&Pi;}}+k}=v_k^{\left(1\right)}$ k＝0，...，K _П-1

$w_{2K_{\mathrm{\&Pi;}}+k}=v_k^{\left(2\right)}$ k＝0，...，K _П-1

The rate-matched output sequence length of this encoding block is designated as E, and rate-matched output bit sequence is e _k, k=0,1 ..., E-1.

Set?k＝0，j＝0

while{k＜E}

<math> <mrow> <mi>if</mi> <msub> <mi>w</mi> <msub> <mrow> <mi>j</mi> <mi>mod</mi> <mi>K</mi> </mrow> <mi>w</mi> </msub> </msub> <mo>&amp;NotEqual;</mo> <mo>&lt;;</mo> <mi>NULL</mi> <mo>></mo> </mrow></math>

$e_k=w_{{j\mathrm{mod}K}_w}$

k＝k+1

j＝j+1

else

j＝j+1

end?if

end?while

Fig. 4 A and 4B are the flow charts of the illustrative methods of the various aspects that provide according to the application, and wherein the PBCH decoder module 320,330 of Fig. 3 can be carried out this method to carry out reliable channel-decoding.In certain embodiments, method 400 can comprise the broadcast channel of current wireless electricity frame is decoded to obtain and wireless network system associated information (410).In certain embodiments, to broadcast channel decode can comprise the check a plurality of hypothesis.

Method 400 can also comprise that the system information with current wireless electricity frame compares (420) with the system information of obtaining from previous radio frame.In certain embodiments, this comparison is in response to through beginning with the Cyclic Redundancy Check that is associated that broadcast channel is decoded.Method 400 can also comprise the system information (430) of optionally refuse current wireless electricity frame at least in part based on comparative result.

In certain embodiments, system information comprises bandwidth (BW) designator, and when the BW designator of the BW designator of current wireless electricity frame and previous radio frame had not matched the system information of refusal current wireless electricity frame.In certain embodiments, at least in part based on coming optionally to refuse system information from current wireless electricity frame with previous frame system associated frame number (SFN).

In certain embodiments; System information comprises the RV index, the system information of present frame and system information from previous radio frame is compared the RV index that comprises with current wireless electricity frame a RV index that is associated and the expectation of confirming from previous radio frame compare.In this embodiment,, can refuse the RV of a RV and expectation the system information of current wireless electricity frame when not matching.

With reference to Fig. 4 B, method 450 can comprise receiving downlink signal (460) below, comprises Physical Broadcast Channel (PBCH).

Method 450 can also comprise decodes to obtain the PBCH payload (470) of first decoding to PBCH.Decoding to PBCH can be carried out always, has successfully carried out CRC up to the PBCH payload to first decoding.In certain embodiments, carry out blind decoding according to a plurality of hypothesis.

Method 450 can also comprise that the PBCH payload of second decoding that obtains before the PBCH payload that is based on first decoding at least in part detects the relevant error condition (480) of PBCH payload of decoding with first.In certain embodiments, the faults condition comprises that BW field that PBCH payload definite and first decoding is associated and the BW field that is associated with the PBCH payload of second decoding do not match.In certain embodiments, the faults condition comprise confirm the BW field be associated with the first decoded payload and the reservation bit that is associated with the PBCH payload of first decoding respectively and the BW field that is associated with the PBCH payload of second decoding and the reservation bit that is associated with the second PBCH payload of decoding do not match.

In certain embodiments, the faults condition comprise confirm with the PBCH payload system associated frame number indication of first decoding be in the frame that is associated with the PBCH payload of first decoding and with frame that the second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame.In certain embodiments, the faults condition comprises that the expectation on given frame border of the RV index of confirming current wireless electricity frame and PBCH is inconsistent.In certain embodiments, the faults condition comprises that physical mixed ARQ designator (PHICH) duration of confirming PCFICH value and expectation is inconsistent.For example, if known PCFICH value is 1 or 2, then can expect " normally " PHICH duration of an OFDM symbol.Method 450 can also comprise the PBCH payload (490) of refusing first decoding in response to the faults condition.

In certain embodiments; A plurality of radio frames are decoded; And detect with the relevant error condition of PBCH payload of first decoding and can comprise: confirm in the decode procedure of first radio frame in a plurality of radio frames whether the CRC to the PBCH payload of first decoding is acceptable, and the RV index that is associated with the PBCH payload of first decoding is whether less than the value of selection.This can comprise: in response to the CRC of PBCH payload of first decoding in the decode procedure of confirming first radio frame in a plurality of radio frames is acceptable and store the PBCH payload of first decoding.Method can also comprise whether the CRC of the PBCH payload of first decoding in the decode procedure of confirming second radio frame in a plurality of radio frames is acceptable, and wherein the time of reception of second radio frame in these a plurality of radio frames is later than first radio frame in a plurality of radio frames.

In certain embodiments, method 450 can also comprise that the CRC of PBCH payload in response to first decoding in the decode procedure of confirming second radio frame in a plurality of radio frames is acceptable and condition satisfies and accepts the PBCH payload of (not shown) first decoding.Condition can comprise: the value indication of the RV index of confirming to be associated with the PBCH payload of first decoding be that selected value adds one (when first radio frame in a plurality of radio frames is directly before second radio frame in a plurality of radio frames), and the PBCH payload that the PBCH payload of first decoding and second is decoded is complementary.For example, it is one that the RV index that can expect continuous radio frame differs.

In certain embodiments; Method 450 can also comprise: in response to when condition does not satisfy, the CRC that confirms the PBCH payload of first decoding in the decode procedure of second radio frame in a plurality of radio frames is acceptable and abandon the PBCH payload of (not shown) second decoding and the PBCH payload of storing first decoding.For example, abandon and can comprise the release memory location, storage can comprise the allocate memory position.Condition can comprise: the PBCH payload of whether indicating add one (when first radio frame in a plurality of radio frames is directly before second radio frame in a plurality of radio frames) and first decoding of selected value with the value of the RV index that is associated of PBCH payload of first decoding whether with the PB of second decoding CH payload that is complementary.

In certain embodiments, method 450 can also comprise: in response to the CRC of PBCH payload of first decoding in the decode procedure of confirming second radio frame in a plurality of radio frames is unacceptable and abandon the PBCH payload of (not shown) first decoding.

In certain embodiments, a plurality of radio frames are decoded.In this case, detect a plurality of CRC that can comprise the lead code of the payload that relatively is directed against a plurality of decodings with the relevant error condition of PBCH payload of first decoding.The PBCH payload of first decoding can be in the payload of a plurality of decodings.Method can also comprise and is chosen in the decode procedure payload through one or more decodings of being associated with the CRC of maximum quantity in response to being associated with acceptable CRC more than one in the payload of confirming a plurality of decodings.This method can comprise the payload of CRC through being associated and/or be associated with the RV index of maximum of selecting in the acceptable payload with maximum quantity.

Fig. 5 is the method flow diagram of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.

510, method 500 can comprise the receiving downlink transmission, and it comprises Physical Broadcast Channel.520, method 500 can comprise carries out blind decoding to Physical Broadcast Channel.In certain embodiments; Blind decoding to Physical Broadcast Channel carries out always; Payload up to decoding has successfully carried out CRC, and Physical Broadcast Channel is carried out blind decoding comprises that the payload that previous success is decoded and the payload of decoding compare.

Blind decoding can carry out a plurality of radio frames, and can comprise whether definite false-alarm is associated with the payload of decoding.Whether this CRC that can comprise the first decoded payload in the blind decoding process of first radio frame of confirming in a plurality of radio frames is whether RV index acceptable and that be associated with the first decoded payload is less than the value of selecting.Method can also comprise that the CRC in response to the first decoded payload in the blind decoding process of confirming first radio frame in a plurality of radio frames is acceptable and store the first decoded payload, and confirms in the blind decoding process of second radio frame in a plurality of radio frames whether the CRC of the payload of decoding is acceptable.The time of reception of second radio frame in a plurality of radio frames can be later than first radio frame in a plurality of radio frames.

In certain embodiments, the value of the RV index of selection can be the value less than 3.In certain embodiments, the value of selection can be at least one in 0,1 or 2.In certain embodiments, the value of selection can be at least one in 1 or 2.

530, method 500 can comprise confirms whether false-alarm is associated with the payload of decoding.In certain embodiments, confirming whether false-alarm is associated with the payload of decoding comprises the identification breach of condition.Breach of condition appears in a BW field that is associated when the payload with previous success decoding in certain embodiments, when being different from the 2nd BW field that is associated with the payload of decoding.

In certain embodiments; When a BW field that is associated with payload that previous success is decoded and first reservation bit that is associated with payload that previous success is decoded are different from the 2nd BW field that is associated with the payload of decoding respectively and during with second reservation bit that the payload of decoding is associated, breach of condition occur.

In certain embodiments; When with the payload system associated frame number indication of decoding be in the frame that is associated with the payload of decoding and with frame that the payload of previous success decoding is associated between the incorrect quantity of Physical Broadcast Channel frame the time, breach of condition appears.

In certain embodiments, when the expectation on the given frame border of RV index and Physical Broadcast Channel is inconsistent, breach of condition appears.

In certain embodiments, when physics HARQ indicator channel (PHICH) duration of physical control format indicator channel (PCFICH) value and expectation when inconsistent, breach of condition appears.In certain embodiments, when the PCFICH value is 1 or 2 and PHICH duration when not being an OFDM symbol, the PCFICH value is inconsistent.For example, if the PCFICH value is known, and physical control format indicator channel is 1 or 2, and " normally " PHICH duration of a PHICH OFDM symbol then should be arranged.Otherwise, can detect breach of condition.

540, method 500 can comprise the payload of refusing to decode in response to confirming false-alarm to be associated with the payload of decoding.

In certain embodiments; Method 500 can comprise a step (not shown), and it comprises that the CRC in response to the payload of decoding in the blind decoding process of confirming second radio frame in a plurality of radio frames is acceptable and condition is able to satisfy and accepts the payload of decoding.Condition can comprise: with the value indication of the RV index that is associated of payload of decoding be that selected value adds the condition of (first radio frame in a plurality of radio frames is in before second frame in a plurality of frames with being right after), and the condition that is complementary of the payload of decoding and the first decoded payload.

In certain embodiments, the value of the RV index of selection can be the value less than 3.In certain embodiments, the value of selection can be at least one in 0,1 or 2.In certain embodiments, the value of selection can be at least one in 1 or 2.

In certain embodiments; Method 500 can comprise a step (not shown), and it comprises that the CRC in response to the payload of decoding in the blind decoding process of confirming second radio frame in a plurality of radio frames is acceptable and condition unmet and abandon the payload of the first decoded payload and storage decoding.Condition can comprise: with the RV index that is associated of payload of decoding is that value that indication is selected adds one numerical value (before first radio frame in a plurality of radio frames is in second frame in a plurality of frames with being right after) and the payload and the first decoded payload of decoding is complementary.

In certain embodiments, method 500 can comprise a step (not shown), and it comprises that the CRC in response to the payload of decoding in the blind decoding process of confirming second radio frame in a plurality of radio frames is unacceptable and abandon the first decoded payload.

Fig. 6 is the flow chart of the method for the various aspects that provide according to the application, is used to carry out reliable channel-decoding.610, method 600 can comprise the reception Physical Broadcast Channel.620, method 600 can comprise carries out blind decoding to Physical Broadcast Channel.In certain embodiments, a plurality of radio frames are carried out blind decoding.

630, method 600 can comprise confirms whether false-alarm is associated with the payload of decoding.In certain embodiments, confirm whether false-alarm is associated with the payload of decoding and comprise relatively a plurality of Cyclic Redundancy Check that wherein, the payload of decoding is in the payload of a plurality of decodings to the lead code of the payload of a plurality of decodings.Method can also comprise in response to being associated with acceptable CRC more than one in the payload of confirming a plurality of decodings in the blind decoding process and select the payload through one or more decodings of being associated with the CRC of maximum quantity.Method can also comprise that the CRC that from the payload that is considered to acceptable decoding, has maximum quantity in the acceptable payload of selection passes through and/or a payload of the RV index of maximum.

640, method 600 can comprise the payload of refusing to decode in response to confirming false-alarm to be associated with the payload of decoding.

Fig. 7 A is the explanations to the block diagram of example system of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.Should be understood that system 700 representes that as functional module it can be the functional module of expression by processor, software, firmware or its combination function that realizes.

System 700 can comprise the logic OR physical combination 702 of electronic unit.For example, logic OR physical combination 702 can comprise electronic unit 704, is used to receive the downlink transmission with Physical Broadcast Channel.PBCH can comprise system information, and it can receive through a plurality of radio frames.

Logic OR physical combination 702 can comprise electronic unit 706, is used for Physical Broadcast Channel is carried out blind decoding.In certain embodiments; Blind decoding to Physical Broadcast Channel carries out always; Payload up to decoding has successfully carried out CRC, and Physical Broadcast Channel is carried out blind decoding comprises that the payload that previous success is decoded and the payload of decoding compare.

Blind decoding can carry out a plurality of radio frames, and whether the CRC of the first decoded payload is whether RV index acceptable and that be associated with the first decoded payload is less than the value of selecting in the blind decoding process that comprises first radio frame of confirming in a plurality of radio frames wherein to confirm whether to be associated false-alarm with the payload of decoding.CRC in response to the first decoded payload in the blind decoding process of confirming first radio frame in a plurality of radio frames is acceptable, can the first decoded payload be stored in the memory.In addition; Whether the CRC of the payload that can confirm to decode in the blind decoding process of second radio frame in a plurality of radio frames is acceptable, and the time of reception of second radio frame in wherein a plurality of radio frames is later than first radio frame in a plurality of radio frames.

In certain embodiments, the value of the RV index of selection can be the value less than 3.In certain embodiments, the value of selection can be at least one in 0,1 or 2.In certain embodiments, the value of selection can be at least one in 1 or 2.

Logic OR physical combination 702 can comprise electronic unit 708, is used for confirming whether false-alarm is associated with the payload of decoding.In certain embodiments, confirming whether false-alarm is associated with the payload of decoding comprises the detection breach of condition.In certain embodiments, when first bandwidth (BW) field that is associated with previous successful payload of decoding is different from the 2nd BW field that is associated with the payload of decoding, detect breach of condition.

In certain embodiments; The 2nd BW field that is associated with payload with decoding respectively when a BW field that is associated with payload that previous success is decoded and first reservation bit that is associated with payload that previous success is decoded and second reservation bit that is associated with the payload of decoding detect breach of condition not simultaneously.

In certain embodiments; When the payload system associated frame number indication with decoding be in the frame that is associated with the payload of decoding and with frame that the payload of previous success decoding is associated between the incorrect quantity of Physical Broadcast Channel frame the time, detect breach of condition.

In certain embodiments, when the expectation on the given frame border of RV index and Physical Broadcast Channel is inconsistent, detect breach of condition.

In certain embodiments, when the PCFICH value and the PHICH duration of expectation are inconsistent, detect breach of condition.For instance, when the PCFICH value is 1 or 2 and PHICH duration when not being an OFDM symbol, can detect inconsistency.

Logic OR physical combination 702 can comprise electronic unit 710, can be with the payload of refusing to decode in response to confirming false-alarm to be associated with the payload of decoding.

In certain embodiments, logic OR physical combination 702 can also comprise that the CRC that is used in response to the payload of confirming in the blind decoding process of second radio frame of a plurality of radio frames, to decode is acceptable and condition is able to satisfy and accepts the electronic unit (not shown) of the payload of decoding.Condition can comprise: the value that the RV index indication that is associated with the payload of decoding is selected adds one numerical value (before first radio frame in a plurality of radio frames is in second frame in a plurality of frames with being right after time), and the payload and the first decoded payload of decoding are complementary.

In certain embodiments, the value of the RV index of selection can be the value less than 3.In certain embodiments, the value of selection can be at least one in 0,1 or 2.In certain embodiments, the value of selection can be at least one in 1 or 2.

Logic OR physical combination 702 can comprise the electronic unit 712 that is used to store, for example memory component.The electronic unit 712 that is used to store can be used to store Physical Broadcast Channel, payload information, decoding payload information, be used for the hypothesis of blind decoding and the desired value of parameter, and out of Memory is as described with reference to figure 7A.

In certain embodiments, logic OR physical combination 702 can also comprise that the CRC that is used in response to the payload of confirming in the blind decoding process of second radio frame of a plurality of radio frames, to decode is acceptable and condition unmet and abandon the electronic unit (not shown) of the payload of the first decoded payload and storage decoding.Condition can comprise that value that the RV index indication that is associated with the payload of decoding is selected adds one numerical value (before first radio frame in a plurality of radio frames is in second frame in a plurality of frames with being right after time) and the payload and the first decoded payload of decoding are complementary.

In certain embodiments, logic OR physical combination 702 can also comprise that the CRC that is used in response to the payload of confirming in the blind decoding process of second radio frame of a plurality of radio frames, to decode is unacceptable and abandon the electronic unit (not shown) of the first decoded payload.

Fig. 7 B is the explanations to the block diagram of example system of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.Should be understood that system 720 representes that as functional module it can be the functional module of expression by processor, software, firmware or its combination function that realizes.System 720 can comprise the logic OR physical combination 722 of electronic unit.

Electronic unit can work together.For example, logic OR physical combination 722 can comprise electronic unit 724, is used to receive Physical Broadcast Channel.Logic OR physical combination 722 can comprise electronic unit 726, is used for Physical Broadcast Channel is carried out blind decoding.In certain embodiments, a plurality of radio frames are carried out blind decoding.

Logic OR physical combination 722 can comprise electronic unit 728, is used for confirming whether false-alarm is associated with the payload of decoding.In certain embodiments, confirm whether false-alarm is associated with the payload of decoding and comprise relatively a plurality of CRCs that wherein, the payload of decoding is in the payload of a plurality of decodings to the lead code of the payload of a plurality of decodings.The CRC that can also comprise in response to being associated with acceptable CRC more than one in the payload of confirming a plurality of decodings selection and maximum quantity in the blind decoding process is through the payload of one or more decodings of being associated.In this case, in the acceptable payload that can select to be associated through RV index one with maximum with the CRC of maximum quantity.

Logic OR physical combination 722 can comprise electronic unit 730, is used for the payload of refusing to decode in response to confirming false-alarm to be associated with the payload of decoding.

Logic OR physical combination 722 can comprise the electronic unit 732 that is used to store, for example memory component.The electronic unit 732 that is used to store can be used to store Physical Broadcast Channel, payload information, decoding payload information, be used for the hypothesis of blind decoding and the desired value of parameter, and out of Memory is as described with reference to figure 7B.

Fig. 8 A is to the explanation to the block diagram of example system of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.Should be understood that system 800 representes that as functional module it can be the functional module of expression by processor, software, firmware or its combination function that realizes.

System 800 can comprise the logic OR physical combination 802 of electronic unit.For example, logic OR physical combination 802 can comprise electronic unit 804, be used for the broadcast channel of current wireless electricity frame is decoded obtaining and wireless network system associated information, and the electronic unit 810 that is used to store.In certain embodiments, to broadcast channel decode can comprise the check a plurality of hypothesis.The electronic unit 810 that is used to store can be safeguarded from the copy of desired value of the system information of a plurality of radio frames acquisitions, the hypothesis that is used for blind decoding, PBCH payload, parameter or the like.

Logic OR physical combination 802 can comprise electronic unit 806, is used for the system information of current wireless electricity frame is compared with the system information of obtaining from previous radio frame.In certain embodiments, can be in response to through beginning comparison with the CRC that is associated that broadcast channel is decoded.

In certain embodiments, system information comprises bandwidth (BW) designator, and when the BW designator of the BW designator of current wireless electricity frame and previous radio frame had not matched the system information of refusal current wireless electricity frame.In certain embodiments, at least in part based on the system information of optionally refusing with previous frame system associated frame number (SFN) from current wireless electricity frame.

In certain embodiments; System information comprises redundancy versions (RV), and with the system information of present frame and system information from previous radio frame compare comprise with a RV who is associated with current wireless electricity frame with from previous radio frame and the RV of definite expectation compares.In this embodiment, when the RV of a RV and expectation does not match, can refuse the system information of current wireless electricity frame.

Logic OR physical combination 802 can also comprise electronic unit 808, is used at least in part coming optionally to refuse based on comparative result the system information of current wireless electricity frame.

Fig. 8 B is the explanations to the example system block diagram of the various aspects that provide according to the application, is used to carry out reliable channel-decoding.Should be understood that system 820 representes that as functional module it can be the functional module of expression by processor, software, firmware or its combination function that realizes.System 820 can comprise the logic OR physical combination 822 of electronic unit.

Electronic unit can work together.For example, logic OR physical combination 822 can comprise electronic unit 824, is used for the receiving downlink transmission, and it has Physical Broadcast Channel (PBCH), and electronic unit 826, is used for PBCH is decoded to obtain the PBCH payload of first decoding.Logic OR physical combination 822 can comprise electronic unit 828, and the PBCH payload that is used for being based at least in part second decoding that obtains before the PBCH payload of first decoding detects the relevant error condition of PBCH payload with first decoding.

Logic OR physical combination 822 can comprise electronic unit 830, is used for refusing in response to the faults condition PBCH payload of first decoding.

Decoding to PBCH can be carried out always, has successfully carried out CRC up to the PBCH payload to first decoding.In certain embodiments, decoding can also comprise a plurality of hypothesis of check.

In certain embodiments, the faults condition comprises that bandwidth (BW) field that PBCH payload definite and first decoding is associated and the BW field that is associated with the PBCH payload of second decoding do not match.In certain embodiments, the faults condition comprises and confirms that BW field that the BW field be associated with the first decoded payload and the reservation bit that is associated with the PBCH payload of first decoding are associated with the PBCH payload with second decoding respectively and the reservation bit that is associated with the second PBCH payload of decoding do not match.

In certain embodiments, the faults condition comprise confirm with the PBCH payload system associated frame number indication of first decoding be in the frame that is associated with the PBCH payload of first decoding and with frame that the second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame.In certain embodiments, the faults condition comprises confirms the redundancy value index, and it is with the expectation of the known frame boundaries of PBCH.In certain embodiments, the faults condition comprises that the PHICH duration of confirming PCFICH value and expectation is inconsistent.

In certain embodiments; A plurality of radio frames are decoded, confirm whether relevant with the PBCH payload of first decoding whether the error condition CRC that comprises the PBCH payload of first decoding in the decode procedure of confirming first radio frame in a plurality of radio frames be confirmed as RV index acceptable and that be associated with the PBCH payload of first decoding whether less than the value of selection.Can also comprise that the CRC of PBCH payload in response to first decoding in the decode procedure of confirming first radio frame in a plurality of radio frames is acceptable and store the PBCH payload of first decoding; And whether the CRC of the PBCH payload of definite first decoding is acceptable in the decode procedure of second radio frame in a plurality of radio frames, and the time of reception of second radio frame in wherein a plurality of radio frames is later than first radio frame in a plurality of radio frames.

In certain embodiments, logic OR physical combination 822 can comprise that being used in response to the CRC that confirms the PBCH payload of first decoding in the decode procedure of second radio frame of a plurality of radio frames is acceptable and condition is able to satisfy and accepts the electronic unit (not shown) of the PBCH payload of first decoding.Condition can comprise that value that the RV index indication confirming to be associated with the PBCH payload of first decoding is selected adds the PBCH payload that the PBCH payload and second of one the numerical value (when first radio frame in a plurality of radio frames is directly before second radio frame in a plurality of radio frames) and first decoding decodes and is complementary.

In certain embodiments, logic OR physical combination 822 can be used in response to the CRC of confirming the PBCH payload of first decoding in the decode procedure of second radio frame of a plurality of radio frames be acceptable and the condition unmet and abandon the PBCH payload of second decoding and store first decoding the PBCH payload comprise the electronic unit (not shown).Condition can comprise that value that the RV index indication that is associated with the PBCH payload of first decoding is selected adds the PBCH payload that the PBCH payload and second of one the numerical value (when first radio frame in a plurality of radio frames is directly before second radio frame in a plurality of radio frames) and first decoding decodes and is complementary.

In certain embodiments, logic OR physical combination 822 can comprise that it is unacceptable and abandon the electronic unit (not shown) of the PBCH payload of first decoding being used in response to the CRC that confirms the PBCH payload of first decoding in the decode procedure of second radio frame of a plurality of radio frames.

In certain embodiments, a plurality of radio frames are decoded, and definite error condition whether with relevant comprising of PBCH payload of first decoding: relatively be directed against a plurality of CRCs of lead code of the payload of a plurality of decodings.Can also comprise: in the payload of a plurality of decodings,, be chosen in the process of decoding and the CRC of maximum quantity payload through one or more decodings of being associated more than under one payload and the situation that acceptable CRC is associated.In this case, can select with the CRC of maximum quantity through and/or the payload of one or more decodings of being associated of maximum RV index in one.

Fig. 9 shows example wireless communications, the embodiment that wherein can utilize the application to describe according to the various aspects that the application provides.The application's instruction can realize in the node (for example, equipment) that utilizes various parts and at least one other node to communicate.Fig. 9 shows various example sampled parts, and it can be used to help enabling communication between nodes.Particularly, Fig. 9 shows the wireless device 910 (for example, access point) and the wireless device 950 (for example, accessing terminal) of wireless communication system 900 (for example mimo system).At equipment 910, the business datum of plurality of data stream offers emission (TX) data processor 914 from data source 912.

In certain embodiments, business datum comprises the control information of on DL, sending.The control information meeting damages because of being interfered.Wireless device 910 can be used for sending to processing control information before the wireless device 950, to be increased in the reliability of decoding to control information in wireless device 950 places.Particularly, described like the application, wireless device 950 can be used to detect the error condition that causes false-alarm and/or carry out blind decoding.

According to some aspects, each data flow is transmitted through transmitting antenna separately.Data processor 914 formats, encodes and interweave based on the business datum of the specific encoding scheme of selecting to data flow to each data flow, so that coded data to be provided.

The coded data of each data flow can use the OFDM technology to adopt pilot data to carry out multiplexing.The data pattern that pilot data is normally known, it is handled in a known manner and can be used for estimating channel response at receiver system.Then, the specific modulation scheme (for example, BPSK, QPSK, M-PSK or M-QAM) that is based upon the data flow selection is modulated (that is sign map) so that modulation symbol to be provided to the multiplexing pilot tone and the coded data of each data flow.The data rate of each data flow, coding and modulation can be confirmed by the instruction that processor 930 is carried out.Data storage 932 can storage of processor 930 or the employed program code of other parts, data and the out of Memory of equipment 910.

The modulation symbol of all data flow can offer TX MIMO processor 920 then, and it can further handle modulation symbol (for example, OFDM).TX MIMO processor 920 is then with N _TIndividual stream of modulation symbols offers N _TIndividual transceiver (XCVR) 922A～922T.According to some aspects, TX MIMO processor 920 forms with wave beam that weighting is applied to the symbol of data flow and from the antenna of its transmission symbol.

Each transceiver 922 receives also handles corresponding symbols streams, so that one or more analog signals to be provided, and further analog signal is nursed one's health (for example, amplification, filtering, up-conversion), is applicable to the modulation signal that on mimo channel, transmits to provide.N from transceiver 922A～922T _TIndividual modulation signal is respectively from N _TIndividual antenna 924A～924T transmission.

At equipment 950, the modulation signal that is transmitted is by N _RIndividual antenna 952A～952R receives, and will offer corresponding transceiver (XCVR) 954A～954R from the signal that each antenna 952 receives.954 pairs of signals that receive separately of each transceiver are nursed one's health (for example, filtering, amplification and down-conversion), the signal of conditioning is carried out digitlization so that sampling to be provided, and further sampling is handled so that corresponding " receiving " symbols streams to be provided.

Receiving (RX) data processor 960 then can be based on specific receiver treatment technology from N _RIndividual transceiver 954 receives and handles N _RThe individual symbols streams that receives is to provide N _TIndividual " detected " symbols streams.RX data processor 960 can carry out demodulation, deinterleaving and decoding to each detected symbols streams, with the business datum of restore data stream.The processing that RX data processor 960 is carried out is complementary with the processing that TX MIMO processor that is positioned at equipment 910 920 and TX data processor 914 are carried out.

Processor 970 periodically confirms to utilize which pre-coding matrix (explanation below).Processor 970 structures comprise the reverse link message of matrix index part and order value part.Data storage 972 can storage of processor 970 or the employed program code of other parts, data and the out of Memory of equipment 950.

Reverse link message can comprise various types of relevant communication links and/or the information of the data flow that receives.Reverse link message can be handled (wherein TX data processor 938 also receive a plurality of data flow from data source 936 business datum) subsequently by TX data processor 938; Modulate by modulator 980; To nursing one's health, and this data flow transmission is returned equipment 910 by transceiver 954A～954R.

At equipment 910, receive by antenna 924 from the modulation signal of equipment 950, nurse one's health by transceiver 922, (DEMOD) carries out demodulation by demodulator 940, and handled by RX data processor 942, with the reverse link message of extraction equipment 950 transmission.Processor 930 can be confirmed to use weight that which pre-coding matrix confirms that wave beam forms subsequently and the message of extracting is handled.

Fig. 9 also shows, and communication component can comprise one or more parts, and it carries out the Interference Control operation of the application's instruction.For example, disturb (INTER.) control assembly 990 can with the processor 930 and/or the cooperation of other parts of equipment 910, like what the application instructed, send signal/receive signal from another equipment (for example, equipment 950) to another equipment (for example, equipment 950).Similarly, Interference Control parts 992 can with the processor 970 of equipment 950 and/or the cooperation of other parts, send signal/receive signal to another equipment (for example, equipment 910) from another equipment (for example, equipment 910).Should be understood that for each equipment 910 and 950, two or more functions of components of describing can be provided by single parts.For example, single processing unit can provide the function of Interference Control parts 990 and processor 930, and single processing unit can provide the function of Interference Control parts 992 and processor 970.

According to one side, logic channel can be divided into control channel and Traffic Channel.Logical control channel comprises BCCH (BCCH), and it is to be used for DL channel that system control information is broadcasted.Further, logical control channel can comprise Paging Control Channel (PCCH), and it is the DL channel of transmitting paging information.In addition, logical control channel can comprise multicast control channel (MCCH), and it is to be used to the point of one or more multicast service channel (MTCH) transmitting multimedia broadcasts and multicast service (MBMS) scheduling and control information to multiple spot DL channel.Usually, after setting up RRC and connecting, this channel is only used by the UE that receives MBMS (for example, old MCCH+MSCH).In addition, logical control channel can comprise DCCH (DCCH), and it is the two-way channel of point-to-point, and it transmits dedicated control information and is used by the UE with RRC connection.According on the one hand, the logic business channel comprises Dedicated Traffic Channel (DTCH), and it is the two-way channel of point-to-point, by a UE special use, be used for transmitting subscriber information.In addition, the logic business channel comprises the MTCH that a little arrives multiple spot DL channel, is used for service data transmission.

Based on one side, transmission channel is divided into DL and UL.The DL transmission channel can comprise broadcast channel (BCH), downlink shared data channel (DL-SDCH) and PCH (PCH).PCH can support UE Power Cutback (for example, discontinuous reception (DRX) cycle can be indicated to UE etc. by network), and it broadcasts and be mapped to the PHY resource that can be used for other control/Traffic Channel in whole sub-district.The UL transmission channel comprises RACH (RACH), request channel (REQCH), up link shared data channel (UL-SDCH) and a plurality of PHY channel.

The PHY channel comprises one group of DL channel and UL channel.For instance, DL PHY channel comprises: CPICH Common Pilot Channel (CPICH), synchronizing channel (SCH), CCCH (CCCH), shared DL control channel (SDCCH), multicast control channel (MCCH), shared UL allocated channel (SUACH), acknowledgement channel (ACKCH), DL physics shared data channel (DL-PSDCH), UL power control channel (UPCCH), indicator channel (PICH) and load designator channel (LICH).Further for instance, UL PHY channel comprises: Physical Random Access Channel (PRACH), channel quality indicator (CQICH), acknowledgement channel (ACKCH), antenna subset indicator channel (ASICH), sharing request channel (SREQCH), UL physics shared data channel (UL-PSDCH) and broadband pilot channel (BPICH).

The embodiment technology of describing among the application can realize in hardware, software, firmware, middleware, microcode or its combination in any.Realize that for hardware processing unit can be implemented in one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processor spare (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor and/or is used for carrying out other electronic unit of the said function of the application or the combination of above-mentioned each item.

When embodiment was realized by software, firmware, middleware, microcode, program code or code segment, they can be stored in the machine readable media (or computer-readable medium), in memory unit.Code segment can be represented the combination in any of process, function, subprogram, program, routine, subroutine, module, software kit, type perhaps instruction, data structure or program statement.Code segment can come to be coupled with another section code segment or hardware circuit through transmitting and/or reception information, data, real ginseng, shape ginseng or memory contents.Information, real ginseng, shape ginseng, data or the like can use any suitable method to comprise that Memory Sharing, message transmission, token transmission, Network Transmission etc. transmit, transmit or transmit.

Realize that for some the module (for example, process, function etc.) of the said function of describing among the application of technological available execution the application realizes that it is carried out by processor, perhaps expression is used to carry out the special circuit of the application institute representation function.Instruction and data can be stored in the memory cell.Memory cell can be implemented in the processor, also can be implemented in outside the processor, and under latter event, it is coupled to processor through various means with communication mode, and these all are well known in the art.

The description of preceding text comprises giving an example of one or more embodiment.Certainly, all possible combination of describing parts or method in order to describe these embodiment is impossible, but those of ordinary skills should be realized that these embodiment can do further combinations and permutations.Therefore, the embodiment that describes among the application is intended to contain the spirit and the interior institute of protection range that fall into appended claims to be changed, revises and be out of shape.In addition, with regard to " comprising " speech that uses in specification or claims, the mode that contains of this speech is similar to " comprising " speech, just in claim, is used as that kind that link word is explained as " comprising " speech.

Claims (64)

1. wireless communications method comprises:

Broadcast channel to current wireless electricity frame is decoded to obtain and wireless network system associated information;

The system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And

Optionally refuse the system information of said current wireless electricity frame at least in part based on said comparative result.

2. method according to claim 1, wherein, to said broadcast channel decode comprise the check a plurality of hypothesis.

3. method according to claim 2 wherein, saidly is in response to relatively that the CRC that is associated through the broadcast channel with the said current wireless of decoding electricity frame begins to carry out.

4. method according to claim 3; Wherein, Said system information comprises bandwidth (BW) designator; And the said optionally step of refusal comprises: the system information of when the BW designator of the BW designator of confirming said current wireless electricity frame and said previous radio frame does not match, refusing said current wireless electricity frame.

5. method according to claim 3, the said optionally step of refusal comprises: at least in part based on refusing the system information from said current wireless electricity frame with said previous frame system associated frame number (SFN).

6. method according to claim 3, wherein, said system information comprises redundancy versions (RV), and

Said comparison step comprises: a RV that will be associated with said current wireless electricity frame and compare according to the RV of the expectation of confirming from the system information of said previous radio frame; And

The said optionally step of refusal comprises: the system information of when the RV that confirms a said RV and said expectation does not match, refusing said current wireless electricity frame.

7. computer program comprises:

Computer-readable recording medium comprises:

First group of code is used to make computer that the broadcast channel of current wireless electricity frame is decoded to obtain and wireless network system associated information;

Second group of code is used to make said computer that the system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And

The 3rd group of code is used to make said computer optionally to refuse the system information of said current wireless electricity frame at least in part based on said comparative result.

8. computer program according to claim 7, wherein, said broadcast channel decoded to be comprised: check a plurality of hypothesis.

9. computer program according to claim 8 wherein, saidly is in response to relatively that the CRC that is associated through the broadcast channel with the said current wireless of decoding electricity frame begins to carry out.

10. computer program according to claim 9; Wherein, Said system information comprises bandwidth (BW) designator; And said optionally refusal comprises: the system information of when the BW designator of the BW designator of said current wireless electricity frame and said previous radio frame does not match, refusing the electric frame of said current wireless.

11. computer program according to claim 9, wherein, said optionally refusal comprises: at least in part based on refusing the system information from said current wireless electricity frame with said previous frame system associated frame number (SFN).

12. computer program according to claim 9, wherein, said system information comprises redundancy versions (RV), and

Saidly relatively comprise: the RV of RV that will be associated with said current wireless electricity frame and the expectation confirmed according to said previous radio frame compares; And

Said optionally refusal comprises: the system information of when the RV that confirms a said RV and said expectation does not match, refusing said current wireless electricity frame.

13. a device comprises:

Be used for the broadcast channel of current wireless electricity frame is decoded to obtain the module with wireless network system associated information;

Be used for module that the system information of said current wireless electricity frame and the system information of obtaining from previous radio frame are compared; And

Be used for optionally refusing based on said comparative result at least in part the module of the system information of said current wireless electricity frame.

14. device according to claim 13, wherein, said broadcast channel decoded to be comprised: check a plurality of hypothesis.

15. device according to claim 14 wherein, saidly is in response to relatively that the CRC that is associated through the broadcast channel with the said current wireless of decoding electricity frame begins to carry out.

16. device according to claim 15; Wherein, Said system information comprises bandwidth (BW) designator; And said optionally refusal comprises: the system information of when the BW designator of the BW designator of said current wireless electricity frame and said previous radio frame does not match, refusing the electric frame of said current wireless.

17. device according to claim 15, wherein, optionally refusal comprises: at least in part based on refusing the system information from said current wireless electricity frame with said previous frame system associated frame number (SFN).

18. device according to claim 15, wherein, said system information comprises redundancy versions (RV), and

Saidly relatively comprise: the RV of RV that will be associated with said current wireless electricity frame and the expectation confirmed according to said previous radio frame compares; And

Said optionally refusal comprises: the system information of when the RV of a said RV and said expectation does not match, refusing said current wireless electricity frame.

19. a device comprises:

Physical Broadcast Channel (PBCH) decoder module is configured to:

Broadcast channel to current wireless electricity frame is decoded to obtain and wireless network system associated information; And

The system information of said current wireless electricity frame is compared with the system information of obtaining from previous radio frame; And

Optionally refuse the system information of said current wireless electricity frame at least in part based on said comparative result.

20. device according to claim 19, wherein, said broadcast channel decoded to be comprised: check a plurality of hypothesis.

21. device according to claim 20 wherein, saidly is in response to relatively that the CRC that is associated through the broadcast channel with the said current wireless of decoding electricity frame begins to carry out.

22. device according to claim 21; Wherein, Said system information comprises bandwidth (BW) designator; And said optionally refusal comprises: the system information of when the BW designator of the BW designator of said current wireless electricity frame and said previous radio frame does not match, refusing the electric frame of said current wireless.

23. device according to claim 21, wherein, optionally refusal comprises: at least in part based on refusing the system information from said current wireless electricity frame with said previous frame system associated frame number (SFN).

24. device according to claim 21, wherein, said system information comprises redundancy versions (RV), and

Saidly relatively comprise: the RV of RV that will be associated with said current wireless electricity frame and the expectation confirmed according to said previous radio frame compares; And

Said optionally refusal comprises: the system information of when the RV of a said RV and said expectation does not match, refusing said current wireless electricity frame.

25. a method of in wireless communication system, broadcast channel being decoded, said method comprises:

The receiving downlink transmission, said downlink transmission comprises Physical Broadcast Channel (PBCH);

Said PBCH is decoded to obtain the PBCH payload of first decoding;

The PBCH payload that is based on previously obtd second decoding of PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload of decoding with said first; And

Refuse the PBCH payload of said first decoding in response to detecting said error condition.

26. method according to claim 25 wherein, is decoded till successfully having realized CRC to the PBCH payload of said first decoding to said PBCH, and said decoding also comprises a plurality of hypothesis of check.

27. method according to claim 26, wherein, detect said error condition comprise following one of at least:

Confirm that bandwidth (BW) field that is associated with the PBCH payload of said first decoding and the BW field that is associated with the PBCH payload of said second decoding do not match, perhaps

Confirm that BW field that BW field that is associated with the payload of said first decoding and the reservation bit that is associated with the PBCH payload of said first decoding are associated with the PBCH payload of said second decoding together respectively and the reservation bit that is associated with the PBCH payload of said second decoding do not match.

28. method according to claim 26, wherein, detect said error condition comprise following one of at least:

Confirm with the PBCH payload system associated frame number indication of said first decoding be in the frame that is associated with the PBCH payload of said first decoding and with frame that the said second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame,

Confirm that redundancy value (RV) index is inconsistent with the expectation to the given frame border of said PBCH, perhaps

Confirm that physical control format indicator channel (PCFICH) value is inconsistent with physics HARQ designator (PHICH) duration of expectation.

29. method according to claim 28, wherein, if said PCFICH value be 1 or 2 and the said PHICH duration be not an OFDM symbol, confirm that then the PHICH duration of said PCFICH value and said expectation is inconsistent.

30. method according to claim 25 wherein, is carried out said decoding to a plurality of radio frames, and wherein, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Confirm in the decode procedure of first radio frame in said a plurality of radio frames; Whether the Cyclic Redundancy Check of PBCH payload of said first decoding is confirmed as acceptable, and whether redundancy value (RV) index that is associated with the PBCH payload of said first decoding is less than the value of selecting;

In the decode procedure of confirming first radio frame in said a plurality of radio frames, it is acceptable and store the PBCH payload of said first decoding that the CRC of PBCH payload of said first decoding is confirmed as; And

Confirm in the decode procedure of second radio frame in said a plurality of radio frames; Whether the CRC of PBCH payload to said first decoding is confirmed as acceptable; Wherein, second radio frame in said a plurality of radio frame is later than first radio frame in said a plurality of radio frame in time.

31. method according to claim 30; Also comprise: in response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming second radio frame in said a plurality of radio frames is acceptable; And following condition is able to satisfy; And accept said first the decoding the PBCH payload, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that the PBCH payload of definite and said first decoding is associated was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

32. method according to claim 30; Also comprise: in response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming said second radio frame in said a plurality of radio frames is acceptable; And following condition unmet; And the PBCH payload that abandons the PBCH payload of said second decoding and store said first decoding, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that is associated with the PBCH payload of said first decoding was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

33. method according to claim 30; Also comprise: in the decode procedure of confirming said second radio frame in said a plurality of radio frames; The CRC of PBCH payload to said first decoding is unacceptable, and abandons the PBCH payload of said first decoding.

34. method according to claim 25 wherein, is carried out said decoding to a plurality of radio frames, and wherein, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Relatively to a plurality of Cyclic Redundancy Check of the lead code of the payload of a plurality of decodings, wherein, the PBCH payload of said first decoding is a payload in the payload of said a plurality of decodings;

Be associated with acceptable CRC in response to the payload more than a decoding in the payload of confirming said a plurality of decodings, and be chosen in the decode procedure payload through one or more decodings of being associated with the CRC of maximum quantity; And

In response to the CRC of the payload of a plurality of decodings in the payload of one or more decodings described in the decode procedure and maximum quantity through being associated, and select with the CRC of maximum quantity payload through said one or more decodings of being associated in the payload of a decoding being associated with maximum redundancy value index.

35. a computer program comprises:

Computer-readable recording medium comprises:

First group of code is used to make the transmission of computer receiving downlink, and said downlink transmission comprises Physical Broadcast Channel (PBCH);

Second group of code is used to make said computer that said PBCH is decoded to obtain the PBCH payload of first decoding;

The 3rd group of code, the PBCH payload that is used to make said computer to be based on previously obtd second decoding of PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload with said first decoding; And

The 4th group of code is used to make said computer to refuse the PBCH payload of said first decoding in response to detecting said error condition.

36. computer program according to claim 35 wherein, is decoded till successfully having realized CRC to the PBCH payload of said first decoding to said PBCH, and said decoding also comprises a plurality of hypothesis of check.

37. computer program according to claim 36, wherein, detect said error condition comprise following one of at least:

Confirm that bandwidth (BW) field that is associated with the PBCH payload of said first decoding and the BW field that is associated with the PBCH payload of said second decoding do not match, perhaps

Confirm that BW field that BW field that is associated with the payload of said first decoding and the reservation bit that is associated with the PBCH payload of said first decoding are associated with the PBCH payload of said second decoding together respectively and the reservation bit that is associated with the PBCH payload of said second decoding do not match.

38. computer program according to claim 36, wherein, detect said error condition comprise following one of at least:

Confirm with PBCH payload system associated frame number (SFN) indication of said first decoding be in frame that the PBCH payload of said first decoding is associated and with frame that the said second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame,

Confirm redundancy value (RV) index, the expectation on the given frame border of itself and said PBCH is inconsistent, perhaps

Confirm that physical control format indicator channel (PCFICH) value is inconsistent with physics HARQ indicator channel (PHICH) duration of expectation.

39. according to the described computer program of claim 38, wherein, if said PCFICH value be 1 or 2 and the said PHICH duration be not an OFDM symbol, confirm that then the PHICH duration of said PCFICH value and said expectation is inconsistent.

40. computer program according to claim 35 wherein, carries out said decoding to a plurality of radio frames, and wherein, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Confirm in the decode procedure of first radio frame in said a plurality of radio frames; Whether the Cyclic Redundancy Check of PBCH payload of said first decoding is confirmed as acceptable, and whether redundancy value (RV) index that is associated with the PBCH payload of said first decoding is less than the value of selecting;

In the decode procedure of confirming first radio frame in said a plurality of radio frames, it is acceptable and store the PBCH payload of said first decoding that the CRC of PBCH payload of said first decoding is confirmed as; And

Confirm in the decode procedure of second radio frame in said a plurality of radio frames; Whether the CRC of PBCH payload to said first decoding is confirmed as acceptable; Wherein, second radio frame in said a plurality of radio frame is later than first radio frame in said a plurality of radio frame in time.

41. according to the described computer program of claim 40; Also comprise: in response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming second radio frame in said a plurality of radio frames is acceptable; And following condition is able to satisfy; And accept said first the decoding the PBCH payload, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that the PBCH payload of definite and said first decoding is associated was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

42. according to the described computer program of claim 40; Also comprise: in response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming said second radio frame in said a plurality of radio frames is acceptable; And following condition unmet; And the PBCH payload that abandons the PBCH payload of said second decoding and store said first decoding, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that is associated with the PBCH payload of said first decoding was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

43. according to the described computer program of claim 40; Also comprise: in the decode procedure of confirming said second radio frame in said a plurality of radio frames; The CRC of PBCH payload to said first decoding is unacceptable, and abandons the PBCH payload of said first decoding.

44. computer program according to claim 35 wherein, carries out said decoding to a plurality of radio frames, and wherein, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Relatively to a plurality of CRC of the lead code of the payload of a plurality of decodings, wherein, the PBCH payload of said first decoding is a payload in the payload of said a plurality of decodings;

Be associated with acceptable CRC in response to the payload more than a decoding in the payload of confirming said a plurality of decodings, and be chosen in the decode procedure and the CRC of maximum quantity payload through one or more decodings of being associated; And

In response to the CRC of the payload of a plurality of decodings in the payload of one or more decodings described in the decode procedure and maximum quantity through being associated, and select with the CRC of maximum quantity payload through one or more decodings of being associated in the payload of a decoding being associated with maximum redundancy value index.

45. a device comprises:

Be used for the module of receiving downlink transmission, said downlink transmission comprises Physical Broadcast Channel (PBCH);

Be used for said PBCH is decoded to obtain the module of PBCH payload of first decoding;

The PBCH payload that is used for being based at least in part previously obtd second decoding of PBCH payload of said first decoding detects the module of the error condition relevant with the PBCH payload of said first decoding; And

Be used for refusing the module of the PBCH payload of said first decoding in response to detecting said error condition.

46. according to the described device of claim 45, wherein, said PBCH is decoded till successfully having realized Cyclic Redundancy Check to the PBCH payload of said first decoding, and said decoding also comprises a plurality of hypothesis of check.

47. according to the described device of claim 46, wherein, detect said error condition comprise following one of at least:

Confirm that bandwidth (BW) field that is associated with the PBCH payload of said first decoding and the BW field that is associated with the PBCH payload of said second decoding do not match, perhaps

Confirm that BW field that BW field that is associated with the said first decoded payload and the reservation bit that is associated with the PBCH payload of said first decoding are associated with the PBCH payload of said second decoding together respectively and the reservation bit that is associated with the PBCH payload of said second decoding do not match.

48. according to the described device of claim 46, wherein, detect said error condition comprise following one of at least:

Confirm with the PBCH payload system associated frame number indication of said first decoding be in frame that the PBCH payload of said first decoding is associated and with frame that the said second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame,

The expectation on given frame border of confirming redundancy value (RV) index and said PBCH is inconsistent, perhaps

Confirm that physical control format indicator channel value (PCFICH) is inconsistent with physical mixed ARQ indicator channel (PHICH) duration of expectation.

49. according to the described device of claim 48, wherein, if said PCFICH value be 1 or 2 and the said PHICH duration be not an OFDM symbol, the PHICH duration of then said PCFICH value and said expectation is inconsistent.

50., wherein, a plurality of radio frames are decoded, and wherein according to the described device of claim 45, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Confirm in the decode procedure of first radio frame in said a plurality of radio frames; Whether the Cyclic Redundancy Check of PBCH payload of said first decoding is confirmed as acceptable, and whether redundancy value (RV) index that is associated with the PBCH payload of said first decoding is less than the value of selecting;

In the decode procedure of confirming first radio frame in said a plurality of radio frames, it is acceptable and store the PBCH payload of said first decoding that the CRC of PBCH payload of said first decoding is confirmed as; And

Confirm in the decode procedure of second radio frame in said a plurality of radio frames; Whether the CRC of PBCH payload to said first decoding is confirmed as acceptable; Wherein, second radio frame in said a plurality of radio frame is later than first radio frame in said a plurality of radio frame in time.

51. according to the described device of claim 50; Also comprise: be used in response to confirming that in the decode procedure of second radio frame of said a plurality of radio frames the CRC to the PBCH payload of said first decoding is acceptable; And following condition is able to satisfy; And accept the module of PBCH payload of said first decoding, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that the PBCH payload of definite and said first decoding is associated was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

52. according to the described device of claim 50; Also comprise: be used in response to confirming that in the decode procedure of said second radio frame of said a plurality of radio frames the CRC to the PBCH payload of said first decoding is acceptable; And following condition unmet; And the module that abandons the PBCH payload of said second decoding and store the PBCH payload of said first decoding, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that is associated with the PBCH payload of said first decoding was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

53. according to the described device of claim 50; Also comprise: be used in response to confirming in the decode procedure of said second radio frame of said a plurality of radio frames; The CRC of PBCH payload to said first decoding is unacceptable, and abandons the module of the PBCH payload of said first decoding.

54. according to the described device of claim 45, wherein, a plurality of radio frames are carried out said decoding, and, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Relatively to a plurality of CRC of the lead code of the payload of a plurality of decodings, wherein, the PBCH payload of said first decoding is a payload in the payload of said a plurality of decodings;

Be associated with acceptable CRC in response to the payload more than a decoding in the payload of confirming said a plurality of decodings, and be chosen in the decode procedure payload through one or more decodings of being associated with the CRC of maximum quantity; And

In response to the CRC of the payload of a plurality of decodings in the payload of one or more decodings described in the decode procedure and maximum quantity through being associated, and select with the CRC of maximum quantity payload through said one or more decodings of being associated in the payload of a decoding being associated with maximum redundancy value index.

55. a device comprises:

Transceiver is configured to the receiving downlink transmission, and said downlink transmission comprises Physical Broadcast Channel (PBCH); And

The PBCH decoder module is configured to:

Said PBCH is decoded to obtain the PBCH payload of first decoding;

The PBCH payload that is based on second decoding that obtains before the PBCH payload of said first decoding at least in part detects the relevant error condition of PBCH payload of decoding with said first; And

Refuse the PBCH payload of said first decoding in response to detecting said error condition.

56. according to the described device of claim 55, wherein, said PBCH is decoded till successfully having realized Cyclic Redundancy Check to the PBCH payload of said first decoding, and said decoding also comprises a plurality of hypothesis of check.

57. according to the described device of claim 56, wherein, detect said error condition comprise following one of at least:

Confirm that bandwidth (BW) field that is associated with the PBCH payload of said first decoding and the BW field that is associated with the PBCH payload of said second decoding do not match, perhaps

Confirm that BW field that BW field that is associated with the said first decoded payload and the reservation bit that is associated with the PBCH payload of said first decoding are associated with the PBCH payload of said second decoding together respectively and the reservation bit that is associated with the PBCH payload of said second decoding do not match.

58. according to the described device of claim 56, wherein, detect said error condition comprise following one of at least:

Confirm with PBCH payload system associated frame number (SFN) indication of said first decoding be in the frame that is associated with the PBCH payload of said first decoding and with frame that the said second PBCH payload of decoding is associated between the incorrect quantity of PBCH frame,

The expectation on given frame border of confirming redundancy value (RV) index and said PBCH is inconsistent, perhaps

Confirm that physical control format indicator channel (PCFICH) value is inconsistent with physical mixed ARQ indicator channel (PHICH) duration of expectation.

59. according to the described device of claim 58, wherein, if said PCFICH value be 1 or 2 and the said PHICH duration be not an OFDM symbol, the PHICH duration of then said PCFICH value and said expectation is inconsistent.

60. according to the described device of claim 55, wherein, a plurality of radio frames are carried out said decoding, and, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Confirm in the decode procedure of first radio frame in said a plurality of radio frames; Whether the Cyclic Redundancy Check of PBCH payload of said first decoding is confirmed as acceptable, and whether redundancy value (RV) index that is associated with the PBCH payload of said first decoding is less than the value of selecting;

In the decode procedure of confirming first radio frame in said a plurality of radio frames, it is acceptable that the CRC of PBCH payload of said first decoding is confirmed as, and stores the PBCH payload of said first decoding; And

Confirm in the decode procedure of second radio frame in said a plurality of radio frames; Whether the CRC of PBCH payload to said first decoding is confirmed as acceptable; Wherein, second radio frame in said a plurality of radio frame is later than first radio frame in said a plurality of radio frame in time.

61. according to the described device of claim 60, wherein, said PBCH decoder module also is configured to:

In response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming second radio frame in said a plurality of radio frames is acceptable; And following condition is able to satisfy; And accept said first the decoding the PBCH payload, wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that the PBCH payload of definite and said first decoding is associated was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

62. according to the described device of claim 60, wherein, said PBCH decoder module also is configured to:

In response to the CRC of PBCH payload to said first decoding in the decode procedure of confirming said second radio frame in said a plurality of radio frames is acceptable; And following condition unmet; And the PBCH payload that abandons the PBCH payload of said second decoding and store said first decoding; Wherein, said condition comprises:

In the time of before said first radio frame in said a plurality of radio frames is in said second radio frame in said a plurality of radio frame with being right after, what the value of the RV index that is associated with the PBCH payload of said first decoding was indicated is that selected value adds one; And

The PBCH payload of the PBCH payload of said first decoding and said second decoding is complementary.

63. according to the described device of claim 60, wherein, said PBCH decoder module also is configured to:

In the decode procedure of confirming said second radio frame in said a plurality of radio frames, be unacceptable and abandon the PBCH payload of said first decoding to the CRC of PBCH payload of said first decoding.

64. according to the described device of claim 55, wherein, a plurality of radio frames are carried out said decoding, and, confirm said error condition whether with relevant comprising of PBCH payload of said first decoding:

Relatively to a plurality of CRC of the lead code of the payload of a plurality of decodings, wherein, the PBCH payload of said first decoding is a payload in the payload of said a plurality of decodings;

Be associated with acceptable CRC in response to the payload more than a decoding in the payload of confirming said a plurality of decodings, and be chosen in the decode procedure payload through one or more decodings of being associated with the CRC of maximum quantity; And

In response to the CRC of the payload of a plurality of decodings in the payload of one or more decodings described in the decode procedure and maximum quantity through being associated, and select with the CRC of maximum quantity payload through said one or more decodings of being associated in the payload of a decoding being associated with maximum redundancy value index.

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